Whisper to the agent
Sends the agent on a live call a private note (text, up to 2,000 characters) that it reads before its next answer and never says aloud, such as “offer the Saturday slot”. Returns 202 with the saved note; it is kept on the call with your name. Returns 409 (call_not_connected) when the call isn’t live or the agent has already left it.
Needs a personal key (kbp_live_…): it acts as you.
Scopes: call:read, call:control
Authorizations
An API key from Settings → API keys, sent as Authorization: Bearer kb_live_…. A workspace key starts kb_; a personal key starts kbp_ and acts as its owner.
Headers
A unique key (a UUID works) for this request. Retrying with the same key returns the first answer instead of running twice.
255The API version to answer as, a date (YYYY-MM-DD). Leave it out for the current version (2026-11-07). An unknown version is refused with 400 unsupported_api_version.
2026-11-07 "2026-11-07"
Path Parameters
Body
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